package com.atguigu.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service("paymentService")
public class PaymentService {

    public String paymentInfoOK(Integer id){
        return "线程池:  " + Thread.currentThread().getName() + "  paymentInfoOK,id:  " + id + "\t"
                + "O(∩_∩)O哈哈~";
    }

    @HystrixCommand(fallbackMethod = "paymentInfoTimeoutHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "3000")
    })
    public String paymentInfoTimeout(Integer id){
        int second = 4;
        try {
            TimeUnit.SECONDS.sleep(second);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
     //   int i = 10/0;
        return "线程池:  " + Thread.currentThread().getName() + " paymentInfoTimeOut,id:  " + id + "\t"
                + "O(∩_∩)O哈哈~" + "  耗时(秒): "+second;
    }

    public String paymentInfoTimeoutHandler(Integer id){
        return "系统繁忙，请稍候再试 O(∩_∩)呵呵~" ;
    }


    @HystrixCommand(fallbackMethod = "paymentCircuitBreakerHandler",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),/* 是否开启断路器*/
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"), // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60"),// 失败率达到多少后跳闸,此处配置60%失败率，10次有6次失败
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id){
         if(id < 0){
             throw  new RuntimeException("********id 不能负数");
         }
        String simpleUUID = IdUtil.simpleUUID();
         return Thread.currentThread().getName()+"\t调用成功，流水号："+simpleUUID;
    }

    public String paymentCircuitBreakerHandler(Integer id){
        return "id不能负数"+id;
    }

}
